Stovepipe drum and furnace



(No Model.)

J. H. MINGUS. STOVBPIPE DRUM AND FURNACB. No. 542,650. Y Patented July16, 1895.

l QJ l Ni'rno STATES JonNgH. MiNeUs, or euri-mm CENTRE, IowA.

STOVEPIPE DRUM AND FURNACE.

SPECIFICATION forming part of Letters Patent No. 542,650, dated July 16,1895.

Application filed December 18, 1894. Serial No. 532.24%. (No model.)

vis a specification.

This invention relates to an improvement in heating and radiating `drumsadapted for use in connection with either sto'ves or furnaces.

The object of the present invention is to simplify and improve theconstruction of heating-drums with a view to rendering the samelighter'in construction, more efficient in practice, and to adapt theseveral parts thereof to be assembled, applied, and supported in a verysimple, effective, and convenient manner.

To this end the invention consists in the combination with ahollow drumof an upper and alower supporting cross-bar, each provided with angularfeet or extensions by means of which the cross-bars are riveted orotherwise secured within the interior of the drum, a hollow cylinderwith closed ends interposed between and rivetedto said crossbarscentrally of the drum for preventing the products of `combustion frompassing through the center of the drum, and a spiral deliector passingone or more times around said central cylinder and between the latterand the inner wall of the drum, and secured at one end to the uppercross-bar and at its lower end to the lower cross-bar.

The invention further consists in certain features and details ofconstruction and arrangement of parts, as hereinafter fully described,illustrated in the drawings, and pointed out in the claims.

,am In the accompanying drawings, Figure lis .t vertical section througha heating-drum with the interiorly-arranged cylinder, spiral detlector,and the supporting cross-bars therefor shown in elevation. Fig. 2 is aperspective view of the central cylinder spiral delector and thesupporting cross-bars therefor7 showing the manner in which s aid partsare combined and supported.

Similar numerals of reference indicate corresponding parts in bothfigures of the drawings.

Referring to the drawings, l designates a hollow cylindrical drum, whichmay be made of any usual or preferred material and provided at or neareither end with peripheral corrugations, forming shoulders forfacilitating the application of the surrounding collars or other partsof a stove or furnace in a manner that will be readily understood. The6o drum l is partiallyclosed ateither end or provided with a circularhead having a central aperture through which-the products ot' combustionenter and escape from the drum.

Just above the bottom of the drum l is arranged a horizontal cross-bar 2of metal or any suitable material, which is provided at either end withperforated feet or angular extensions 3, by means of which saidcross-bar is adapted to be riveted or otherwise secured 73 y to theinner wall of the drum, as indicated in Fig. 1. A similar cross-bar t islocated just beneath the upper head of the drum and is secured in placein the same manner asthe lower cross-bar 2. A centrally-arranged hol- 75 low cylinder 5 provided with closed ends at top and bottom isinterposed between the cross-bars 2 and 4 and is riveted or otherwisesecured to the latter, as shown. Aspiral deflector 6, preferably ofsheet metal, extends 8o one or more times around the central cylinder 5and is riveted or otherwise secured at its upper end to the uppercross-bar and at its lower end to the lower cross-bar. The spiraldeflector is of a width adapting it to snugly'iill the space between thecentral cylinder and the inner wall of the drum,and is l secured at itsinner edge to said central cylinder by means of angle plates or brackets7 riveted to and firmly connectingthe deflector 9o and the centralcylinder in the manner shown.

By means of the construction above described the products of combustionentering at the lower aperture of the drum are prevented from passingthrough the center of the drum by reason of the presence of the cylindcr5 closed` atits ends, as described, said products of combustion beingthereby caused to pass upwardly around said cylinder and between thesame and the inner wall of the rco drum. The upward progress of theheated air is retarded by the spiral deiiector 6, and furthermore saidheated air is thereby caused to travel around the central cylinder andwithin the drum, thereby utilizing the heated air to a greater extentthan where such spiral detlector is not used.y

By reason of the construction above described and the particular mannerin which the several .parts of the device are arranged and combined, itwill be apparent that the upper and lower cross-bars described supportboth the central cylinder and the spiral deflector, which are rivetedthereto, so that said parts are made, as it were, in one piece and areadapted to be inserted or removed as a whole within and from theinterior of the surrounding drum.

The construction described combines simplicity, lightness, and cheapnessof manufacture, and will be found very economical and efficient inpractice, affording a thorough circulation of the heated air within thedrum and the radiation of the heat therefrom.

Having thus described the invention, what is claimed as new, and desiredto be secured the combination with a hollow cylindrical drum, of theupper and lower horizontal cross bars provided with perforated feet ateither end by means of which they are riveted within the drum andlocated a sufficient distance from the ends thereof to afford freespaces at the top and bottom of the drum, a centrally arranged hollowmetallic cylinder closed at its ends and interposed between and

